fix(android): fix possible crash when attempting to retrieve camera parameters. (#2570)

Author: cristianoccazinsp

android/src/main/java/com/google/android/cameraview/Camera1.java

@@ -1011,7 +1011,18 @@ void setFocusArea(final float x, final float y) {
             public void run() {
                 synchronized(Camera1.this){
                     if (mCamera != null) {
-                        Camera.Parameters parameters = mCamera.getParameters();
+                        Camera.Parameters parameters = null;
+
+                        // This might crash on some devices if the camera is not
+                        // available/locked, with a RuntimeException("getParameters failed (empty parameters)")
+                        try{
+                            parameters = mCamera.getParameters();
+                        }
+                        catch(Exception e){
+                            Log.e("CAMERA_1::", "setFocusArea.getParameters failed", e);
+                            parameters = null;
+                        }
+
                         if (parameters == null) return;
 
                         String focusMode = parameters.getFocusMode();
@@ -1104,7 +1115,15 @@ private void resetFocus(final boolean success, final Camera camera) {
             public void run() {
                 if (mCamera != null) {
                     mCamera.cancelAutoFocus();
-                    Camera.Parameters parameters = mCamera.getParameters();
+
+                    Camera.Parameters parameters = null;
+                    try{
+                        parameters = mCamera.getParameters();
+                    }
+                    catch(Exception e){
+                        Log.e("CAMERA_1::", "resetFocus.getParameters failed", e);
+                        parameters = null;
+                    }
                     if (parameters == null) return;
 
                     if (parameters.getFocusMode() != Camera.Parameters.FOCUS_MODE_CONTINUOUS_PICTURE) {